The patterned driveway is complemented by a patchwork of sedum carpet on either side of the rooftop training tower collects and filters rainwater. The low-maintenance planting not only contributes to the green building features, but also offers habitat for the local ecology. On the East, West and North walls, a matrix of vine-covered screens enclose the yard with a palette that changes with the season and create a private space for the Company staff to socialize during off hours.